Problems making jffs2 utils

Problems making jffs2 utils

[John Burch]

I'm running into compiler errors when trying to build the jffs2
utilities for a 2.4.17/mips target.  I've checked out the latest mtd
code according to www.linux-mtd.infradead.org, then have followed the
instructions in the mtd/util/README file (copied mtd/util contents to
directory under linux root and changed $CROSS as necessary since I'm
cross-compiling to mips).  I cd to <mips-kernel-path>/linux/utils and do
a make, but get errors immediately, which typically include the
following (depending on which util I'm trying to make)...

.../libc.so.6: undefined reference to 'no symbol'
.../mips-linux-ld: cannot find -lz

I'm really only after 'erase' and maybe 'jffs2reader' for use on my mips
embedded target; I already have mkfs.jffs2 as an x86 binary for my x86
development platform.  Any ideas, or better place for me to post this
question?

John

Re: Problems making jffs2 utils

[Earl Manning]

[-- Attachment #1: Type: text/plain, Size: 1287 bytes --]

Hi John,

I have a similar system, embedded mips based, and here is the changed Makefile for the util directory that I used.  I hope this helps.

Earl Manning

On Mon, 7 Apr 2003 14:50:49 -0400
"John Burch" <jburch@vincisystems.com> wrote:

> I'm running into compiler errors when trying to build the jffs2
> utilities for a 2.4.17/mips target.  I've checked out the latest mtd
> code according to www.linux-mtd.infradead.org, then have followed the
> instructions in the mtd/util/README file (copied mtd/util contents to
> directory under linux root and changed $CROSS as necessary since I'm
> cross-compiling to mips).  I cd to <mips-kernel-path>/linux/utils and do
> a make, but get errors immediately, which typically include the
> following (depending on which util I'm trying to make)...
> 
> .../libc.so.6: undefined reference to 'no symbol'
> .../mips-linux-ld: cannot find -lz
> 
> I'm really only after 'erase' and maybe 'jffs2reader' for use on my mips
> embedded target; I already have mkfs.jffs2 as an x86 binary for my x86
> development platform.  Any ideas, or better place for me to post this
> question?
> 
> John
> 
> 
> ______________________________________________________
> Linux MTD discussion mailing list
> http://lists.infradead.org/mailman/listinfo/linux-mtd/

[-- Attachment #2: Makefile --]
[-- Type: application/octet-stream, Size: 1072 bytes --]


# -*- sh -*-

# $Id: Makefile,v 1.1.1.1 2003/03/26 20:58:27 earl Exp $

HOSTCC := gcc
CROSS=mipsel-linux-
CC := $(CROSS)gcc
HOSTCFLAGS += -I../include -O2 -Wall -Wstrict-prototypes -Wshadow
CFLAGS += -I../include -Wall -Wstrict-prototypes -Wshadow -Wl,-Bstatic

TARGETS = ftl_format erase eraseall nftldump nanddump doc_loadbios \
nftl_format mkfs.jffs ftl_check mkfs.jffs2 lock unlock \
einfo mtd_debug fcp nandwrite jffs2dump #jffs2reader

SYMLINKS = crc32.h crc32.c compr_rtime.c

all: $(TARGETS)

clean:
	rm -f *.o $(TARGETS) $(SYMLINKS)

mkfs.jffs2.o eraseall.o crc32.o: crc32.h

$(SYMLINKS):
	ln -sf ../fs/jffs2/$@ $@

# mkfs.jffs2: crc32.o compr_rtime.o mkfs.jffs2.o compr_zlib.o
# 	$(CC) $(LDFLAGS) -o $@ $^ -lz

# eraseall: crc32.o eraseall.o
# 	$(CC) $(LDLAGS) -o $@ $^ -lz

# jffs2reader: jffs2reader.o
# 	$(CC) $(LDFLAGS) -o $@ $^ -lz 

mkfs.jffs2: crc32.c compr_rtime.c mkfs.jffs2.c compr_zlib.c
	$(HOSTCC) $(HOSTCFLAGS) $(LDFLAGS) -o $@ $^ -lz

eraseall: crc32.o eraseall.o
	$(CC) $(LDLAGS) -o $@ $^

jffs2reader: jffs2reader.o
	$(CC) $(LDFLAGS) -o $@ $^

RE: Problems making jffs2 utils

[John Burch]

> 
> I have a similar system, embedded mips based, and here is the 
> changed Makefile for the util directory that I used.  I hope 
> this helps.
> 
> Earl Manning

Two things...

1. Your makefile helped, but the static 'erase' binary is nearly 2MB
(0.5MB stripped); I need this for the target and can't afford that much
space.  When I add '-shared' to CFLAGS, 'erase' is down to a manageable
size, but then I see that the libc.so.6 (libc-2.2.5.so) that it needs is
over 5MB (1.6M stripped).  Still too big.  Are there other solutions for
erasing or for library?

2. Also, I'm still getting...

"undefined reference to: 'cpu_to_je16'" and 
"undefined reference to: 'cpu_to_je32'"

errors when building eraseall.c.  It seems it uses these, but the only
place I see them defined (as macros) is in mkfs.jffs2.c.  I could always
just duplicate those from mkfs.jffs2 and put them into eraseall, but I'm
wondering if there are other issues involved.

John

> 
> On Mon, 7 Apr 2003 14:50:49 -0400
> "John Burch" <jburch@vincisystems.com> wrote:
> 
> > I'm running into compiler errors when trying to build the jffs2 
> > utilities for a 2.4.17/mips target.  I've checked out the 
> latest mtd 
> > code according to www.linux-mtd.infradead.org, then have 
> followed the 
> > instructions in the mtd/util/README file (copied mtd/util 
> contents to 
> > directory under linux root and changed $CROSS as necessary 
> since I'm 
> > cross-compiling to mips).  I cd to 
> <mips-kernel-path>/linux/utils and 
> > do a make, but get errors immediately, which typically include the 
> > following (depending on which util I'm trying to make)...
> > 
> > .../libc.so.6: undefined reference to 'no symbol'
> > .../mips-linux-ld: cannot find -lz
> > 
> > I'm really only after 'erase' and maybe 'jffs2reader' for use on my 
> > mips embedded target; I already have mkfs.jffs2 as an x86 
> binary for 
> > my x86 development platform.  Any ideas, or better place for me to 
> > post this question?
> > 
> > John
> > 
> > 
> > ______________________________________________________
> > Linux MTD discussion mailing list 
> > http://lists.infradead.org/mailman/listinfo/linux-mtd/
> 

Re: Problems making jffs2 utils

[Holger Schurig]

> over 5MB (1.6M stripped).  Still too big.  Are there other solutions for
> erasing or for library?

Try another library but glibc, e.g. uclibc

Re: Problems making jffs2 utils

[Jörn Engel]

On Mon, 7 April 2003 14:50:49 -0400, John Burch wrote:
> 
> I'm running into compiler errors when trying to build the jffs2
> utilities for a 2.4.17/mips target.  I've checked out the latest mtd
> code according to www.linux-mtd.infradead.org, then have followed the
> instructions in the mtd/util/README file (copied mtd/util contents to
> directory under linux root and changed $CROSS as necessary since I'm
> cross-compiling to mips).  I cd to <mips-kernel-path>/linux/utils and do
> a make, but get errors immediately, which typically include the
> following (depending on which util I'm trying to make)...
> 
> .../libc.so.6: undefined reference to 'no symbol'
> .../mips-linux-ld: cannot find -lz

You need the common zlib patch, it should be on www.kernel.org
somewhere under people/dwmw2.

Jörn

-- 
Data expands to fill the space available for storage.
-- Parkinson's Law

Re: mtd irc

[Charles Manning]

 Has this moved?

 I can no longer connect to irc.openprojects.net

 Thanx

-- CHarles

Re: mtd irc

[Conn Clark]

Hi Charles,

The server "irc.openprojects.net" is no more. Most if not all irc 
channels there moved to this server "irc.freenode.net"



Charles Manning wrote:
>  Has this moved?
> 
>  I can no longer connect to irc.openprojects.net
> 
>  Thanx
> 
> -- CHarles
> 
> ______________________________________________________
> Linux MTD discussion mailing list
> http://lists.infradead.org/mailman/listinfo/linux-mtd/
> 
> 


Have fun,

	Conn Clark

-- 

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  (Warning they may try to sell their house out from under you.)
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  This email address may be used to communicate to Conn Clark
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RE: Problems making jffs2 utils

[John Burch]

Several questions...

1.  Even to build 'erase' only, one still needs zlib?
2.  I can't seem to track down the 'common zlib patch' you refer to.  Is
this a special patch in support of mtd, or a general patch for zlib
(such that if I get the latest zlib I wouldn't need the patch)?
3.  Is the patch particular to a specific version of zlib?
4.  Can my target zlib version differ from the host zlib version without
causing problems?

Thanks,
John


> -----Original Message-----
> From: linux-mtd-bounces@lists.infradead.org 
> [mailto:linux-mtd-bounces@lists.infradead.org] On Behalf Of Jörn Engel
> Sent: Monday, April 07, 2003 2:53 PM
> To: John Burch
> Cc: 'Mtd'
> Subject: Re: Problems making jffs2 utils
> 
> 
> On Mon, 7 April 2003 14:50:49 -0400, John Burch wrote:
> > 
> > I'm running into compiler errors when trying to build the jffs2 
> > utilities for a 2.4.17/mips target.  I've checked out the 
> latest mtd 
> > code according to www.linux-mtd.infradead.org, then have 
> followed the 
> > instructions in the mtd/util/README file (copied mtd/util 
> contents to 
> > directory under linux root and changed $CROSS as necessary 
> since I'm 
> > cross-compiling to mips).  I cd to 
> <mips-kernel-path>/linux/utils and 
> > do a make, but get errors immediately, which typically include the 
> > following (depending on which util I'm trying to make)...
> > 
> > .../libc.so.6: undefined reference to 'no symbol'
> > .../mips-linux-ld: cannot find -lz
> 
> You need the common zlib patch, it should be on 
www.kernel.org somewhere under people/dwmw2.

Jörn

-- 
Data expands to fill the space available for storage.
-- Parkinson's Law

______________________________________________________
Linux MTD discussion mailing list
http://lists.infradead.org/mailman/listinfo/linux-mtd/

Re: Problems making jffs2 utils

[Jörn Engel]

On Wed, 9 April 2003 09:09:54 -0400, John Burch wrote:
> 
> 1.  Even to build 'erase' only, one still needs zlib?

No, that shouldn't be the case.

> 2.  I can't seem to track down the 'common zlib patch' you refer to.  Is
> this a special patch in support of mtd, or a general patch for zlib
> (such that if I get the latest zlib I wouldn't need the patch)?

Dammit! I was stupid, confused or worse and didn't read the work
"utils" in your mail. Others got it right, so I hoped this would go
unnoticed. You didn't have to rub it in.

Forget the common zlib, you only need it for the kernel.

> 3.  Is the patch particular to a specific version of zlib?
> 4.  Can my target zlib version differ from the host zlib version without
> causing problems?

see above. Sorry about that.

Jörn

-- 
And spam is a useful source of entropy for /dev/random too!
-- Jasmine Strong

Re: Problems making jffs2 utils

[David Woodhouse]

On Mon, 2003-04-07 at 19:50, John Burch wrote:

> .../mips-linux-ld: cannot find -lz

You need zlib compiled for the target and available in the toolchain sys-root.


-- 
dwmw2